80128480

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{331}}^1$

素因数の和:452

約数の個数: 96

約数和(自身を含む): 203303520

約数和(自身を除く): 123175040

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 68, 80, 85, 89, 136, 160, 170, 178, 272, 331, 340, 356, 445, 544, 662, 680, 712, 890, 1324, 1360, 1424, 1513, 1655, 1780, 2648, 2720, 2848, 3026, 3310, 3560, 5296, 5627, 6052, 6620, 7120, 7565, 10592, 11254, 12104, 13240, 14240, 15130, 22508, 24208, 26480, 28135, 29459, 30260, 45016, 48416, 52960, 56270, 58918, 60520, 90032, 112540, 117836, 121040, 147295, 180064, 225080, 235672, 242080, 294590, 450160, 471344, 500803, 589180, 900320, 942688, 1001606, 1178360, 2003212, 2356720, 2504015, 4006424, 4713440, 5008030, 8012848, 10016060, 16025696, 20032120, 40064240, 80128480]

約数ペア:

[(1, 80128480), (2, 40064240), (4, 20032120), (5, 16025696), (8, 10016060), (10, 8012848), (16, 5008030), (17, 4713440), (20, 4006424), (32, 2504015), (34, 2356720), (40, 2003212), (68, 1178360), (80, 1001606), (85, 942688), (89, 900320), (136, 589180), (160, 500803), (170, 471344), (178, 450160), (272, 294590), (331, 242080), (340, 235672), (356, 225080), (445, 180064), (544, 147295), (662, 121040), (680, 117836), (712, 112540), (890, 90032), (1324, 60520), (1360, 58918), (1424, 56270), (1513, 52960), (1655, 48416), (1780, 45016), (2648, 30260), (2720, 29459), (2848, 28135), (3026, 26480), (3310, 24208), (3560, 22508), (5296, 15130), (5627, 14240), (6052, 13240), (6620, 12104), (7120, 11254), (7565, 10592)]